天天开心英语可以翻译为 "everyday happy English". 这个词组来源于一个汉语词语 "天天开心"，字面意思是 "everyday happy"，表示每一天都快乐。加上 "English" 一词，可以理解为 "happy English"，指的是在学习英语时感到快乐的体验。

例句：

I always feel happy when I study English with my teacher, it's like everyday happy English for me.

Learning English can be fun and rewarding, just like everyday happy English.

If you want to improve your English skills, try to make it a fun and enjoyable experience, like everyday happy English.